Earlier quoted context omitted.
In Canada, virtually all credit card transactions now take place via chip insertion, not swiping, and chip transactions require PIN entry, not signing. Unless they get an external numpad to handle such things, this is going to be a security nightmare.
In Canada, most in store transaction are using Interac and not credit cards. I wonder when Square will accept both. I guess europeen countries have something similar to Interac as well (french's blue card?).
The point is that the European rules for credit cards is EVERY different from the US. Signatures are no longer valid, you need the PIN and a lot of ATM and terminals will only read the chip. New terminals without chip read won't get approved.
Launching a swipe terminal is catering to a dying marked.